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Uploaded on:
13/02/2009 05:49:32
Type:
Digital Asset
File Size:
266.69 KB
Dimensions:
1000 x 748 pixels
2857 views 4 downloads
P number: P000186
Old photograph number: OSLPlate3
Caption: Scottish oil-shale processing 1. An oil-shale breaker as used in one of the early stages in the processing of oil shale to produce various oils and waxes.
Description: Scottish oil-shale processing 1. An oil-shale breaker as used in one of the early stages in the processing of oil shale to produce various oils and waxes. From the minehead, shale is conveyed in trucks by an endless wire rope to the 'breaker' where it is broken into pieces about four inches cube by passing it between revolving heavy cast-iron rollers fitted with wedge-shaped blunt teeth made of specially tempered hard steel. The oil-shales of the Lothians consist of indurated clay and contain varing quantities of organic matter called kerogen and pyrobitumen. At certain temperatures during processing they decompose and distillate to produce crude oil.
Date taken: 01/01/1927
Photographer: Unknown
Copyright statement: NERC
Acknowledgment: This image was digitized with grant-in-aid from SCRAN the Scottish Cultural Resources Access Network
Orientation: Landscape
Size: 266.69 KB; 1000 x 748 pixels; 85 x 63 mm (print at 300 DPI); 265 x 198 mm (screen at 96 DPI);
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